package com.study7.springcache.config;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.concurrent.ConcurrentMapCache;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.cache.support.SimpleCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.lang.reflect.Method;
import java.util.Collections;

/**
 * @author xuly
 * @title: CachConfig
 * @projectName spring-boot
 * @description: TODO
 * @date 2019-07-2617:32
 **/
@Configuration
@EnableCaching
public class CachConfig extends CachingConfigurerSupport {

    @Bean
    @Override
    public CacheManager cacheManager() {
        SimpleCacheManager cacheManager = new SimpleCacheManager();
        ConcurrentMapCache concurrentMapCache = new ConcurrentMapCache("models");
        cacheManager.setCaches(Collections.singletonList(concurrentMapCache));
        return cacheManager;
    }

    @Bean
    @Override
    public KeyGenerator keyGenerator() {
        return new KeyGenerator() {
            @Override
            public Object generate(Object target, Method method, Object... params) {
                StringBuilder sb = new StringBuilder();
                sb.append(target.getClass().getName());
                sb.append(method.getName());
                for (Object obj : params) {
                    sb.append(obj.toString());
                }
                return sb.toString();
            }
        };
    }

}
